Case for loading-coils.



PATENTED 0011-30, 1906,

H. P. ALBRIGHT. ms]; FOR LOADING G'OILS.

APPLICATION FILED APE.22. 1905.

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H. F. ALBRIGHT.

CASE FOR LOADING GOILS.

APPLICATION FILED APR.22.1905. v

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No. 834,352. PATENTED OCT. 30, 1906.

V U H. F. ALBRIGHT. CASE FOR LOADING OOILS.

APPLICATION-FILED AP R.22.1905.

. a SHEETS-SHEET s.

ll l 1 MHIHHIIIIIIIIUI mun HENRY F. ALBRIGHT, OF

- ELECTRIC COMPANY,

ILLINOIS.

PATENT OFFICE.

NEW YORK, N. Y., ASSIGNOR r WESTERN or CHICAGO, 1LLINOIS,,A CORPORATIONOF CASE FOR LOADING-OCILS Specification of Letters Patent.

. PatentedOct. 30, .1906.

Application filed April 22,}905. Serial No. 256,966.

To all wlwm, it may concern:

Be it known that I, HENRY F. ALBnIonT, a citizen of the United States,residing at New York, in the county of New York and. State of New York,have invented a certain new and useful Improvement in Cases for Loading-Coils, of which the following is a full, clear, concise, and exactdescription.

My invention relates to a case for loadingcoils, and has for its objectto compactly assemble and rigidly support a plurality of coils within acontaining case or pot in such manner that they will be protected frominjury and from atmospheric action or influ ence.

It is well known that by associating loading or impedance coils orcircuits of telephone-cables trouble due to the capacity or condensanceof the cable-oonductors may be avoided, since the impedance or inductiveeffect of the coils very nearly balances the capacity of the conductors.Heretofore these coils have simply been placed alongside a cable at thepoint or. points where they are connected with the conductors thereof.This plan is objections able, since the coils are left unprotected andsubjected to injuries of many kinds, and coils when injured are very aptto derange and throw out of service the circuits of thecable-condiictors.

In accordancewith my invention I collect the coils into groups andprovide containingcases therefor, in each of which a number of bles arelocated 111 .45 to' ta 6 up the least room.

supported,

necting-wires of the coils.

am lo,

the groups may be compactly and rigidly the cases being hermeticallysealed. and provided with outlets for the c0n- These cases mayinproximity to the cables with coils are to be connected-forexcontaining cases of the loading coils to e associated wi hheunderground ca be disposed which their my-arrangement the coils areprotected'from inj of every kind and are assembled so as I will describemy inventionparticularly 1 by reference to the accompanying drawings,

*ing-coils embodying isa vertical sectional view of the case on hne '2 2of Fig. 1.

' wherein- 1 Figure 1 is a plan view' of a case for load- ,my invention.Fig 2 Fig. 3 is a vertical sectional ports c cfor t tom of-the case.These spindles with the conductors .a portion of the walls of themanholes. -With' These artitions prevent cross-talk between the wall ofthe pot near its upper view of the case on-line 3 3 of Fig. 1, and Fig.4 is a sectional plan view on line 4 4 of Fig. 3. The same letters ofreference are used to designate the same parts wherever shown.

' The case or pot 0., iron, is arranged to receive a plurality of groupsof loading or toroidal-shaped coils b b,

which is preferably, of

adapted to be rigidly and compactly support- 'ed therein. I rovidespindles or-axial supe groups of coils, which are rigidly mounted withinthe case, being preferablysecured at their lower ends to the bot may beof non-magnetic niaterialas, for example, wood. A spider d is arrangedto receive the upper ends of the spindles and is secured to t e innerwall of the pot or case to maintain the spindles in rigid position.Conductingwires 6 blead from of the structure preferably by way of acable, sheath, or pipe which projects into the case through the cover athereof, which is secured to' the body of the case by bolts or othersuit}-1 eac the coils to the outside group may be brought together intoa small cable and all of such small cables united into one, which passesout of the case at one point, being protected preferably provided withan annular outwardly-projecting flange 1, cover is secured, a corrugatedmetallic washer f being interposed between said cover and flange. V

I prefer to separate the groups of coils by partitions, and to this endmay construct the case in cellular form-that is, so that'it comrises anumber of individual cells or chainers e c for. the groups extendingnearly to the top .of the case, the spider being support-' ed above thecells by the flan e a upon the inner surface of the case,.whic flangeforms the several cells.

coils 0 different groups.

The coils are preferably embedded in a sealing composition and t e coverand case hermetically sealed. 1 preferably provide edge with an upwardlyprojecting flange a ,'wh1ch, to? gether with the wall of the case, formsa gutter into whichprojects an annular rib'upon the inner surface'of thecover, holes a being provided in the coverjat int rvals immediby thesheath W. The pot is.

to which the ICO ately outside the ribs and leadin to the gutter. Thecover may be provided with an opening or openings (1 through which asealing com )osition may be poured into the case. When the pot isfilled, the composition enters the gutter and passes through theopenings 0, thus hermetically sealing the case.

in practice I prefer to surround the coils and fill the case with rosinand rosin-oil to the level of the spider before the cover is put on.

place, and fill the balance of the case with hot asphalt um, which ispoured through the openings (1 in the cover until it oozes through theopenings a therein, when suitable plugs may be placed in the openings aa as shown in Fig. 1.

I claiin- 1. The combination with a containingcase, of groups ofloading-coils therein, connecting-wires leading from the coils to theexterior of the case, supporting-spindles for said groups of coilssecured to the bottom of the case, a spider to which the free ends ofsaid spindles are secured, supported by the inner wall of the case, andmaintaining the spindles in a rigid position, and means for hermeticallysealing said case.

2. The combination with a containingcase, of groups of loading-coilstherein, supporting or axial spindles of non-magnetic material for saidgroups secured to the bottom of the case, a spider to which the [freeends of said spindles are secured, supported by the inner wall of thecase and maintaining the spindles in a rigid position, connectingwiresfor said coils, a cable projecting within the case to the conductorswhereof said connecting-wires are secured, a cover adapted to be securedto the case, and means for hermetically sealing said case.

3. The combination with a containingcase, of groups of loading-coilstherein, supporting-spindles of non-magnetic material for said groupssecured to the bottom of the case, a spider to which the free ends ofsaid spindles are secured, supported by the inner wall of the, case, tomaintain said spindles in a rigid position, a sealing composition withinthe case in which said coils are embedded, connecting-wires for thecoils, said wires being formed into a cable which leads to the outsideof the case, a cover for the case, and means for hermetically sealingthe cover to the case.

4. The combination witha containing-case, of groups of loading-coilsrigidly supported therein, partitions formed integral with said baseseparating said groups, connecti rig-wires for said coils leading totheexterior of the case, a sealing composition within the casesurrounding said coils, and means for sealing said case. I

I then fasten a partition f, preferably of cardboard, to the spider,secure the cover in 5. The combination with a containing-case,comprising a number of individual cells or chambers extending nearly tothe top of the case, of a group of loading-coils within each cell,supporting spindles of non magnetic material for said groups, secured tothe bottom of the case, a spider, to which the free ends of saidspindles are secured, supported above said cells to maintain saidspindles rigid, connecting-wires for said coils, a cover for the casehaving an outlet for said wires, and means for hermetically sealing saidcase.

6. In combination, a-casing or box having a cover secured thereto, aseries of cells within the box and formed integrally therewith, a

spider mounted on said cells, a series of wooden spindles supported bythe spider within the cells, groups of toroidal-shaped coils carried bysaid spindles, connections from said coils to the exterior of the box,and a sealing composition within said cells and box, whereby ahermetically-sealed casing is formed for the groups of coils.

7. The combination in a structure for loading-coils, of a series ofcells formed integrally, each cell being adapted tosupport therein aspindle carrying a number of such loadingcoils, with a cover for thebody of said structure, and means for hermetically sealing the coverabove said cells, substantially as and for the purpose specified.

8. A containing-case for loading-coils divided into cells by metallicpartitions, formed integral therewith, spindles within said cells uponwhich said loading-coils are mounted, connecting-wires for said coilsleading to the exterior of the case, and a sealing composition withinsaid cells and case, whereby the sealing composition forms a hermeticalseal for said case.

9. In a containing-ease for loading-coils, the combination of a gutter,a flange formed integral with the containing-case, a cover adapted to besecured to said flange, an annular lip upon the cover projecting intosaid gutter, said cover having holes therein adapted to register withthe gutter, plugs for said holes, a corrugated metallic washer betweensaid cover and flange, and a sealing compound for sealing saidprojecting flange within said gutter, whereby :a hemnetical joint isformed between the cover-randomitaming-case.

10. In a containing-Case, the combination with a gutter formed' at thetopof the case, of: a flange formed-upon said case, a cover adapted tobe secured to said flange-a downwardly projecting flange upon the coverlying within said gutter, said cover-having holes therein registeringwith the gutter, plugs for said holesaand a sealing compound for sealingsaid downwardly-projecting flange Within the gutter; whereby ahermetical joint is formed between the cover and the case.

11. The combination with a containingcase, of groups of loading-coilsWithin the case, supporting-spindles for said groups rigidly mountedwithin the case, connectingwires for said coils leading to the exteriorof the case, an annular gutter formed at the top of the case, a coverhaving a'downwardlyprojecting annular flange within said gutter, and asealing compound Within the gutter in which said flange is embedded,whereby the 10 case is hermetically sealed.

In witness whereof I hereunto subscribe my name this 28th day ofJanuary, A. D.

HENRY F. ALBRIGHT. Witnesses:

J. W. BAUCKER, W. S. H. LOZIER.

